44 INSECTS INJURIOUS TO GARDEN AND ORCHARD CROPS. 



attaches to the permanency of the species in this latitude. Injuries 

 are much more pronounced in the South, and are probably not appre- 

 ciable, if they occur at all, in the more northern localities mentioned. 



REMEDIES. 



There is little doubt that the first-hatching larvae feed for some time 

 upon the foliage or upon the outside of the stems before entering them 

 or the fruit. This renders them vulnerable to insecticides, and of these 

 nothing is better than Paris green, which has already been advised 

 against these two species. After the larva3 have entered the stalks 

 or the fruit they can not be reached with poisons. 



LEAF-FOOTED PLANT-BUGS WHICH ATTACK CUCURBITS. 



THE NORTHERN LEAF-FOOTED PLANT-BUG. 



(Leptoglossus oppositus Say) 



RECENT OCCURRENCE AND INJURY. 



This plant-bug, which is a near relative 

 of Leptoglossus phyllopus, the injurious 

 leaf- footed plant bug of the orange and 

 other tropical fruits, has recently come 

 under observation in such manner as to 

 stamp it as an enemy to the growth ot' 

 cucurbits, although not one of prime im- 

 portance. 



September 11, 1897, adults of this bug 

 were noticed by the writer on canteloupes 

 at Cabin John, Md., but no special sig- 

 nificance was attached to the occurrence. 

 Two days later, however, on the 13th, 



Fk;. 9.— Leptoylossus oppositus— twicenat- -,«- ^j t\ tt -\ .c t^ j -ii ti/tj 



urai size (original). Mr - w - D - Hugb.es, of Keedysville, Md., 



sent us a large series of specimens, with 

 the statement that the insect was very destructive on melon vines in his 

 vicinity during the season. 



On the 16th of the same month two colonies of this bug were found 

 on cucumber vines near Tennallytown, 1). 0. It was present at this 

 time in all stages except the egg. Later, on the 29th of September, 

 larvae and nymphs were observed in the same locality on watermelon 

 vines. 



August 25, 1898, a colony of nymphs, mostly of the second stage, 

 was found on squash growing on the experimental plat of this Depart- 

 ment. The following week another colony was observed on these 

 grounds, and during the second week of September the fourth stage of 

 the nymphs was observed. By the 14th, or the beginning of the third 

 week, most of the nympbs were in the fourth stage; one, however, 

 transformed to the fifth stage on this date. The same day a colony 

 was discovered at Tennallytown, D. C, in the same place where the 

 species had been observed the previous year. 



